Add either a text box or label to the form.
You can change the text programatically by accessing the object you added.
for a text box:
Text1.Text = "Something you want to show"
or for a label
Label1.Caption = "Something you want to show"

You have to have some form of object that will accept text. This is most commonly a text area or a label. This could also be a rich text control, etc...

What are you trying to do?
If you want the text to show up but not the background, easiest way would be to use a label and set the background to transparent. You might also want to set the zorder to 0 (I believe) which would put it to the top of the screen above everything else.